Suppose the Earth produced as much energy per kilogram each second as the Sun does. What would be the total energy output of the Earth?
Q: A 10 kg toy roller-coaster car is 9 meters above the ground and moves at a speed 15 m/s. What is the…
A:
Q: A object weighing 33 kg goes up a 7 meter hill. If 231 J of thermal energy ar created how fast was…
A: Given, Mass, m=33kg Height, h=7m According to the conservation of energy, 12mv2=mgh+231
Q: A ball has 1200J of energy. How much force was exerted through 0.65 m, so the ball would have that…
A: Given : Energy (E) = 1200 J Displacement (d) = 0.65 m
Q: It is estimated that 7x10kg of water pours over the Niagara falls every seconds.if the falls are 50m…
A: Potential energy stored due to mass m at height h is; P=mgh Here, g is acceleration due to gravity.…
Q: What is the energy in the motion of a ball with a mass of 4 kg going at 11.4 m/s? Give you answer…
A:
Q: Suppose a person eats 2000 Kcal per day. Using the facts that 1 Kcal is approximately 4.2 Kj (a…
A: Joule is unit of energy or work. And Watt is the unit of power, which is energy per unit time. So,…
Q: What is the kinetic energy of a 25 kg dog that is running at a speed of 8.7 m/s (about 19 mi/h)?
A: The formula for kinetic energy is given as follows:K=12mv2 K is the kinetic energy , m is the mass…
Q: An object with a mass of 100 grams (0.100kg) is dropped from a certain height and has a a velocity…
A:
Q: A personal watercraft and rider have a combined mass of 378 kg. What is their kinetic energy (in J)…
A: Given data, Total combined mass of watercraft and rider , m = 378 kg velocity of watercraft and…
Q: A lightbulb has an average power output of 125 watts. If the lightbulb is left on for an hour, what…
A: Given: The power output of the lightbulb is 125 W. The running time of the bulb is 1 hour.…
Q: What is the kinetic energy of a 4 kilogram cat runnig at 5 m/sec ?
A: given that,mass of cat, m=4 kgvelocity of cat, v=5 ms
Q: As a gasoline engine is running, an amount of gasoline containing 15,000J of chemical potential…
A:
Q: A rock has a mass of 5.71kg and has 482.21j of potential energy. How high off the ground is the…
A:
Q: If a pigeon sits on top of a building and has a potential energy of 249 J, if the pigeon has a mass…
A: Introduction: Potential Energy: It is stored energy of position possessed by an object. There are…
Q: What is the kinetic energy of a 27 kg dog that is running at a speed of 7.9 m/s (about 18 mi/h)?
A:
Q: n the future pennies have become obsolete and a new type of furnace is invented that converts the…
A:
Q: A ball has 1200 J of energy. How much force was exerted through 0.65 m, so the ball would have that…
A:
Q: The amount of work performed when an airplane took off from sea level and climbed to an altitude of…
A: Given Amount of work is W=7.6 x 107 J Time taken is t=65 s
Q: If a 0.02 kg bullet is traveling 2 meters off the ground, what would the potential energy of the…
A: The expression for the potential energy is, P=mgh
Q: What is the average power consumption in watts of an appliance that uses 6.62 kW · h of energy per…
A: We know that the appliance uses 6.62 kW.h of energy per day and in this question, we need to…
Q: A book on a shelf has potential energy of 200J and two times the mass of a book next to it. What is…
A: Given data The gravitational potential energy for the book is given as PEh = 200 J. The…
Q: what is the speed of a 100kg dude running with a kinetic energy of 23.8J
A: We know that kinetic energy of mass m moving with speed V is given by Kinetic energy=K=(1/2)mV2
Q: How much power does a swimmer produce if she transforms 2.4 kJ of chemical energy (in food) to…
A:
Q: A bag is dragged up a rough slope at a constant speed by a rope on a winch. The kinetic energy of…
A: The answer is given below
Q: What is the kinetic energy of a 15 kg dog that is running at a speed of 7.0 m/s (about 16 mi/h)?
A: Given mass m = 15 kg speed v = 7.0 m/s we have to find out kinetic energy
Q: An object moves with kinetic energy 18 J at ground level (where potential energy = 0), and moves 2…
A:
Q: A force does 150 J of work on an object as it goes from rest to a speed of 3 m/s. How much work…
A: Given data: Work done (W) = 150 J Initial velocity (V0) = 0 m/s Final velocity (v) = 3 m/s
Step by step
Solved in 3 steps
- What is the kinetic energy of a 21 kg dog that is running at a speed of 7.6 m/s (about 17 mi/h)?What is the energy in the motion of a ball with a mass of 9.5 kg going at 16.2 m/s? Give you answer in joules (J).the energy needed to increase the speed of a certain car from 22 m/s to 44 m/s is 240 kj. the car is driven up a hill 55m high. what is the change of potential energy of the car ?
- What is the kinetic energy of a 1066 kg car moving at 29.8m/s(66.7mi/h)?Water flows over a waterfall that is 20.0 m high at the rate of 4.0 x 104 kg/s. If this water powers an electric generator with a 40.0% efficiency, how many watts of electric power can be supplied? Give you answer in MW (1 megawatt = 1x10' W). 3,136,000A personal watercraft and rider have a combined mass of 414 kg. What is their kinetic energy (in J) when they are going 28 m/s?
- If a jet uses 100 J of energy in 50 s what is its power output?A spring is hung from a hook and a 15 Newton weight is hung from the spring. The spring stretches 0.1 meters. If this spring were compressed 2 meters, how much energy would be stored?A person goes up a flight of stairs in 20 s. If the person weighs 600 N, and the vertica height of the stairs is 10 m, what is the person's power output? Answer: W